VEGA WEIGHTRAC 31 4 … 20 mA_HART - four-wire - Manual (Page 31)

31
5 Connecting to power supply
WEIGHTRAC 31 • 4 … 20 mA/HART - four-wire
42374-EN-131119
1 1
24
56
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11 12
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91
01
1
3
A
Fig. 17: Belt speed - plant control system (PLC) or tachometer (analogue)
A Output
1 Plant control system (PLC)
2 Tachometer (analogue)
3 Diode (blocking voltage > 50 V) 3)
Fig. 18: Digital tachometer (TACHO.A1A4M)
Tachometer (digital)
3) Not required with output "open collector"